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A006875 as a simple table

na(n)
10
21
32
43
54
67
76
812
912
1023
1110
1251
1312
1475
1550
16144
1716
18324
1918
20561
21156
221043
2322
242340
2580
264119
27540
288307
2928
3017521
3130
3232928
332096
3465567
35366
36135432
3736
38262179
398250
40525348
4140
421065093
4342
442098263
4533876
464194347
4746
488456160
49420
5016779280

[0,1,2,3,4,7,6,12,12,23,10,51,12,75,50,144,16,324,
 18,561,156,1043,22,2340,80,4119,540,8307,28,17521,
 30,32928,2096,65567,366,135432,36,262179,8250,
 525348,40,1065093,42,2098263,33876,4194347,46,
 8456160,420,16779280]